Isaiah jennings



UNITED STATES PA'IEN QFFICE.;

ISAIAII JENNINGS, OF NEW YORK, N. Y.

LAMP FOR BURNING VOLATILE INGREDIENTS.

Specification of Letters Patent No. 3,793, dated October 12, 1844.

To all 'whom t may coa-cern.'

Be it known that I, IsAIAH JENNrNes, of the city of New York, in the State of New York, have made a new and useful improvementin the manner of constructing lamps for the burning of volatile ingredients, by means of which improvement the supply of the fluid to be burned and its consequentcombustion are regulated in a man ner more perfect than heretofore.

In Figure l, in the accompanying drawing, I have represented my lamp, in section.

A, is the reservoir for containing the in gredients which descend therefrom, through the supply tube, B, to the stop cock, C, which may be opened to any desired eX- tent. In the horizontal part, B, B, of the tube, and close to the stop cock, C, I insert a roll, or piece of cotton cloth, or other like material, through which the volatile liquid will percolate slowly; this may occupy an inch, or nearly so, of the length of said tube. The remainder of the horizontal part of this tube, say from B, to B, I ll with fine wire, such as a roll of wire gauze, or of fine wire pressed together, and pushed in. This wire admits of a free passage to the liquid in passing to the burner, while it, at the same time, allows the lamp to be agitated without disturbing the fluid contained between the stop cock, C, and the burner. rlhe vertical part, B, of the supply tube I lill with cotton wick, cloth, or other absorbent material, which will,by capillary attraction, carry the volatile ingredients up toward the burner, D; but I do not continue the wick-like sub stance up to the top of said tube, but occupy its upper end, say for the length of half an inch, more or less, as at B", with line wire laid straight, and closely compressed together; this filling when cut off fiat at the top will, when not very minutely examined,` appear solid, but there will, of necessity, be fine interstices between t-he wire, through which the volatile liquid will pass in a state of vapor when the lamp is ignited; at other times its supply will be cut off by closing the cock, C.

My burner has the following peculiarity in its form. The apertures, which constitute the jets for the flame, open into a groove as shown at E; the use of this is to protect the issuing vapor from the action of the ascending current of air always produced by the heat from combustion; this ascending current, when it strikes the gas,

or va oor immediatel at its issue has aA the center of the screw cap, Gr; which cap is removed for supplying freshingredients to the lamp, and in the upper part of the reservoir, A, I insert the safety apparatus for preventing the ignition of the volatile material within the reservoir, secured to me by Letters Patent.

`When it is desirable to use this lamp entirely free from shadow below the flame, it

may be made with the burner to turn down,

as shown at A,Fig.2. In this figure I have represented it as adapted to be fixed to a wall, and have not shown the wire and cotton filling of the tubes, this being the same as in Fig. 1. i Y

Having thus, fully described the nature of my improvements in the lamp for burning volatile ingredients, what I claim therein as new, and desire to secure by Letters Patent, is-

ljThe manner of regulating the supply by the combined operation of the filling with cotton cloth, or other similar, fibrous substance, in the parts designated; together with the packing of wire interposed as at B, and the termination of the supply opening in a cylindrical stopper of straight wires immediately below the burner, as described.

2. I claim, likewise, the employment of the groove E, in the burner, made in the manner, and for the purpose, set forth.

I do not claim either of the individual parts of the packing embraced in the first claim, but limit my claim to their combination with each other substantially as set forth.

ISAIAI-I JENNINGS.

Witnesses:

Trios. P. JONES, WM, H. BISHOP. 

